295 lines
7.6 KiB
C
295 lines
7.6 KiB
C
/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2021-08-10 charlown first version
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*/
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#include <rtthread.h>
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#include <rtdevice.h>
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#include <rthw.h>
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#include "board.h"
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#include "ch32f10x_rcc.h"
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rt_uint32_t ch32_get_sysclock_frequency(void)
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{
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RCC_ClocksTypeDef RCC_Clocks;
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RCC_GetClocksFreq(&RCC_Clocks);
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return RCC_Clocks.SYSCLK_Frequency;
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}
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void ch32f1_usart_clock_and_io_init(USART_TypeDef *usartx)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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if (usartx == USART1)
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{
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
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/* USART1 TX-->A.9 RX-->A.10 */
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
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GPIO_Init(GPIOA, &GPIO_InitStructure);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
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GPIO_Init(GPIOA, &GPIO_InitStructure);
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}
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if (usartx == USART2)
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{
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
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/* USART2 TX-->A.2 RX-->A.3 */
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
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GPIO_Init(GPIOA, &GPIO_InitStructure);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
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GPIO_Init(GPIOA, &GPIO_InitStructure);
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}
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if (usartx == USART3)
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{
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
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/* USART3 TX-->C.10 RX-->C.11 */
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
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GPIO_Init(GPIOC, &GPIO_InitStructure);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
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GPIO_Init(GPIOC, &GPIO_InitStructure);
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GPIO_PinRemapConfig(GPIO_PartialRemap_USART3, ENABLE);
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}
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}
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void ch32f1_spi_clock_and_io_init(SPI_TypeDef *spix)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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if (spix == SPI1)
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{
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RCC_APB2PeriphResetCmd(RCC_APB2Periph_SPI1, ENABLE);
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_7;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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}
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if (spix == SPI2)
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{
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_15;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_14;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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}
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}
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rt_uint32_t ch32f1_spi_clock_get(SPI_TypeDef *spix)
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{
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RCC_ClocksTypeDef RCC_Clocks;
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RCC_GetClocksFreq(&RCC_Clocks);
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if (spix == SPI1)
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{
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return RCC_Clocks.PCLK2_Frequency;
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}
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if (spix == SPI2)
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{
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return RCC_Clocks.PCLK1_Frequency;
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}
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return RCC_Clocks.PCLK2_Frequency;
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}
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void ch32f1_i2c_clock_and_io_init(I2C_TypeDef *i2cx)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
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if (i2cx == I2C1)
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{
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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GPIO_PinRemapConfig(GPIO_Remap_I2C1, ENABLE);
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}
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if (i2cx == I2C2)
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{
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C2, ENABLE);
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10 | GPIO_Pin_11;
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GPIO_Init(GPIOB, &GPIO_InitStructure);
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}
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}
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void ch32f1_i2c_config(I2C_TypeDef *i2cx)
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{
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I2C_InitTypeDef I2C_InitTSturcture;
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if (i2cx == I2C1)
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{
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I2C_InitTSturcture.I2C_ClockSpeed = 100000;
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I2C_InitTSturcture.I2C_Mode = I2C_Mode_I2C;
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I2C_InitTSturcture.I2C_DutyCycle = I2C_DutyCycle_16_9;
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I2C_InitTSturcture.I2C_OwnAddress1 = 0;
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I2C_InitTSturcture.I2C_Ack = I2C_Ack_Enable;
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I2C_InitTSturcture.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
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I2C_Init(I2C1, &I2C_InitTSturcture);
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I2C_Cmd(I2C1, ENABLE);
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I2C_AcknowledgeConfig(I2C1, ENABLE);
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}
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if (i2cx == I2C2)
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{
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I2C_InitTSturcture.I2C_ClockSpeed = 100000;
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I2C_InitTSturcture.I2C_Mode = I2C_Mode_I2C;
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I2C_InitTSturcture.I2C_DutyCycle = I2C_DutyCycle_16_9;
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I2C_InitTSturcture.I2C_OwnAddress1 = 0;
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I2C_InitTSturcture.I2C_Ack = I2C_Ack_Enable;
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I2C_InitTSturcture.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
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I2C_Init(I2C2, &I2C_InitTSturcture);
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I2C_Cmd(I2C2, ENABLE);
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I2C_AcknowledgeConfig(I2C2, ENABLE);
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}
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}
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void ch32f1_hwtimer_clock_init(TIM_TypeDef *timx)
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{
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if (timx == TIM1)
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{
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);
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}
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if (timx == TIM2)
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{
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
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}
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if (timx == TIM3)
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{
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
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}
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if (timx == TIM4)
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{
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);
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}
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}
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rt_uint32_t ch32f1_hwtimer_clock_get(TIM_TypeDef *timx)
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{
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RCC_ClocksTypeDef RCC_Clocks;
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RCC_GetClocksFreq(&RCC_Clocks);
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/*tim1~4 all in HCLK*/
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return RCC_Clocks.HCLK_Frequency;
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}
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struct rt_hwtimer_info hwtimer_info1 =
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{
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.maxfreq = 1000000,
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.minfreq = 2000,
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.maxcnt = 0xFFFF,
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.cntmode = HWTIMER_CNTMODE_UP,
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};
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struct rt_hwtimer_info hwtimer_info2 =
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{
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.maxfreq = 1000000,
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.minfreq = 2000,
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.maxcnt = 0xFFFF,
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.cntmode = HWTIMER_CNTMODE_UP,
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};
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struct rt_hwtimer_info hwtimer_info3 =
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{
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.maxfreq = 1000000,
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.minfreq = 2000,
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.maxcnt = 0xFFFF,
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.cntmode = HWTIMER_CNTMODE_UP,
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};
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struct rt_hwtimer_info hwtimer_info4 =
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{
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.maxfreq = 1000000,
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.minfreq = 2000,
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.maxcnt = 0xFFFF,
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.cntmode = HWTIMER_CNTMODE_UP,
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};
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struct rt_hwtimer_info *ch32f1_hwtimer_info_config_get(TIM_TypeDef *timx)
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{
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struct rt_hwtimer_info *info = RT_NULL;
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if (timx == TIM1)
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{
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info = &hwtimer_info1;
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}
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else if (timx == TIM2)
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{
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info = &hwtimer_info2;
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}
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else if (timx == TIM3)
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{
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info = &hwtimer_info3;
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}
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else if (timx == TIM4)
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{
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info = &hwtimer_info4;
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}
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return info;
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}
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